Spring boot通过注解解决跨域请求，跨域访问问题

注解

@CrossOrigin

Spring Framework 4.2 GA为CORS提供了第一类支持，使您比通常的基于过滤器的解决方案更容易和更强大地配置它。所以springMVC的版本要在4.2或以上版本才支持@CrossOrigin

代码示例

@CrossOrigin(origins = “*”,allowCredentials = “true”)

    /**
     * 处理跨域请求
     *
     * @param flid 分流id
     * @return
     */
    @CrossOrigin(origins = "*",allowCredentials = "true")
    @GetMapping("/getFjListById")
    public Msg getFjListById(@RequestParam String flid, HttpServletResponse response, HttpServletRequest request) {
        Map> result = fjscService.getFjListList(flid);
        return Msg.builder().success().data(result).build();

    }